Circuit for coin-collectors.



C0. 845,112. v CATENTED ECB.v 2C, 19C?.

C. L. MQQCARRIB C H. M. CRANE. CIRCUIT FCR CCIN CCLLBCT'CCS.'

APPLIOAATIO-N FILED FEB. 13.A 1906l v i vr suv. im" View@ i liliilinllll in .lla'liin JAMES L. McQUARRiE, F CHICAGO, LLINS, AN@ .HENRY M. CRNE, 0l? lil-lill@ YORK, N. Y., ASSlGlilQRS T0 WESTERN ELECTRC'CMPANY, 0F *SHK/AGG ILLINOIS, A CORPGRATIUN OF lLLlNGlS.

No. 8455i l2. Specication of Lettere FatentI Patented Feb. 26, 196i?. application led February 13. 1908. Serial No. 390.931.

To a/ZZ whom, zit may concern.' claims a statement of the parte, improve- Be it known that we, JAMES, L. MCQUAR- ments, and combinations .vhich we consider 5 Rin and HENRY M. CRANE, citizens oi the novel with us. United States, residing at Chicago and N eW The telephone-line shown extends in tivo 5 York, in the counties of Cook and New York limbs l 2 from a substation to a central oilice, and States of illinois and N ew York, respecconductor 1 extending through the contacts tively, have invented a certain new and use of the usual cut-oil relay c to the tree pole of 6o ful improvement in Circuits for Coin-Collec a grounded battery B, the usual line-relay l tors, of which the following is a' full,r clear, being included in conductor i between the 1o concise, and exact description. cut-oli' relay contacts and the battery. The

Our invention relates to a telephone-pay limb 2 is in the particular type ci telephonestation system and its object is to provide an circuit with which' We have 'chosen to illus- 6 improved arrangement of circuits and appatrate our invention, shown open at the cenratus for use in coin-collecting systems Where trai oice, both conductors i. 2, however, the deposit of one or more coins by a calling being connected with the usual Springjacks subscm'ber is required. y f d d at the central office. M Our invention provides means whereby the A branch conductor 3 at the substation go central-olice operator may test a calling-line extends from the limb l of the line through a :pf

to determinewhether the subscriber has depolarized coin-distributing electromagnet a posited the coins required of him and also to ground through pair of contacts c, which means whereby the operator may 'dispose of are adapted to be closed by the iirst coin de the deposited coins as occasion demands. posited, said conductor also including a relay 7 In an embodiment of our inventions relay f. lt will be apparent that-the completion is provided in a ground branch from 'the line oi branch 3 by the deposit ci a coin coinat the substation, said branch being completes a circuit for thehne-relay t, polarized plated by contacts operated by the first coin magnet A, and relay-f being unresponsive to required of the subscriber. Asecend branch current from the battery B the central Eo from said circuit to ground is controlled station.l jointly by contacts actuated by said relay A branch conductor i entends from the 4when energized and by the second deposited open limb of the line througharmature coin. The operator at the central bilico is ci relay f and its normally openi'ront contact provided with link conductors and connes-f f2 to ground, said conductor valso .inluding 85 tion-switches for unitingsaid conductors normally openA contacts o, adapted to be with the line, `and a test-key is associated closed by a second coin. Thus the relayfin with each pair of link conductors adapted to branch 3 :from the limb l of the line controls connect a grounded source of current with jointly with the contacts g the continuity ci the line to o erate said relay, said test-key the conductor 4 from the limb of the line. go being also a apted to associate with the cir- The relay j' controls at its back contactjf3 a cuit ci' the line a test-signal which responds break in the transmitter-Gironit, the arina 4o upon-the closure of said second branch bythe ture of said relay when unattracted being4 sets of contacts operated by the relay and drawiiby a spring against said contact. second coin to currentv from said source, `at the central staticirthe operator is pro-fc5 thereby indicating th'e presence of a second vvided with a plug h, connected with the coin. Electromagnetic mechanism is prousual link conductors and source ci current. 215 vided vat the substation for depositing the The plug t and springjack constitute a ooins,'said mechanism being adapted to be connectioneswitcli for uniting the link con operated under the control of the centralductors with the liue. acc oilice operator by current from suitable A test-key i is associated with the link conV sources associated with the link conductors. ductors and is adapted to connect irse 5o We' will describe our invention particuole of grounded battery B with both of 'said larly byreierenoe to the acco1npanyingdraivlink conductors. and so to both-sides of the ing, which illustrates the referred embodi-- line. The test-key is provided with contactm5 ment thereof, reserving 4or the appended@ levers t i?, esile/nected tvithlthe-.tip and ring contacts, respectively, o1" the lug h, the out contacts el said levers i t2 being con nested by conductors 5 6, respectively, with the Jfree poleof battery B', poled oppositely to'hattciy B, so as to operate relay f when itsl circuit is completed. In the conductor t is located an electromagnetic Itestsignal c, adapted to respond to current from 'cattery B' when a circuit therefor is com plot-cd over line conductor-2 and branch 4 to earth.' The' coin-distributing magnet, .is arranged to be' unresponsive to current from battery B. The operator is. provided with the usual keys landl in association with the link conductors for applyin l'iigher voltage from batteries 2 B3, respectively, to the link conductors to operate the coin-distributing magnet A and eil'ect the distribution of the deposited coin or coins.

The operation of the system may be briefly described as follows: .The subscriber to i -inalce a call deposits a coin, closing contacts mers ik?? ofthe test-key i against their outer" lcontact.-anvils alplies erfreut from the freev c and completing a grounded circuit includ ing the line-signal b, which will indicatey to the operator that a connection is desired.V The operator will thereupon insert plug h 'into spring-inch, d and ascertain the the subscriber. quired for the desired connection;` the operator will proceed in the usual manner;-.bnt if a second coin is vvrc' uired the operator after asking the subscri er to depositsuch'coin will operate her testkey 'i to ascertain whether or not her request has been complied with.' l llhe closingv of the contact-le- Wants of pole ofv battery. by way of conductors 5 6 to both limbs 1 2 of the line, current llowing over limb ly to branch conductor 3, and lthence to ground through the contacts c.

' The'coin-distributing magnet A. 4will not be operated by this current; but relay f will `re-` the continuity of branch j conductor 4' omlimb 2 of the line, dprovidnot been deposited by current passing over conductor'f through the. substation bridge and. branch 3 to earth. The operator may now vproceed with the connection in the usual manner.

i.. The combinationwith a line-circuit,1of a branch from one limb of said circuit to current ofv lff but a single coin is're" net to dispose of both Said. coins..

.84ans ground, coin-actuated contacts controlling.

said branch, a coin-distributing magnet in said branch, a second branch from the other limb of said circuit to ground, contacts controllin said branch, a test-signal in the circuito said second branch, meansfor apply# ing test-currentfrom a (grounded source in the circuit of .said secon branch to operate said signal, the operation of said si nal being j depen ent upon'ftbe closure of sai( contacts of the second branch, and ymeans associated with the circuit for .operating said coin-dis- 3. The combinations/ith a line-circuit, ofi a relay 1n a branch from said circuit to areturn-conducto'r, a second branch from said circuit to said return-conductor,' a contact lactuated by said reiay and a coin-actuated contact jointly* controlling -said' second branch, a source of :current return-conductor and'adapted to be applied to said circuit ,to operate said relay, and a signal device associated with said circuit and responsive under the control of said contacts 'to current from said source. l

4. The combination with a line-circuit, of a relay in a coin-controlled branch from one iside 'of the 'circuit to a return-conductor, a second branch from the other side of said cirjointly by said relay and contacts closed by a second'coin, crest-signal in vthe circuit of said second branch, and means for rent fromv a source v,connected lto said returnconductor to both sides of the circuitto' cause connected to said IOO said signal toi indicate the presence of said I second coin.

5. The Combinati-0n wahthe line-simon,

f of a relay in a coin-controlled branch from one side of the circuit to coin-distributing magnet second branch from the circuit to 'earth controlled lay and contacts closed by a secon coin, an electromagnetic signal associated with the circuit of said second' branch, means for ap plying current to bothsides of the circuit to operate said relay' and cause said signal to indicate the presence of said second coin, and means for applying current to said circuit to ground, a polarized in saidv branch, 'a

other side of said f jointlyb saidreoperate said polarized coin-distributing magf o, The combination with a telephoneline extending 1n two limbs from a substation to cuit to said return-conductor controlled E izolmffctm with one imb o? thi: Eine at im oce, the @they limb being open, a, @zum Branch from sami {imi-mentioned. g

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